base commit

app/Services/Vacation/VacationBalanceService.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Services\Vacation;
+
+use App\Enums\ApprovalStatus;
+use App\Enums\VacationType;
+use App\Models\Employee;
+
+class VacationBalanceService
+{
+    public function entitlement(): int
+    {
+        return (int) config('hr.annual_leave_days');
+    }
+
+    public function takenAnnualDays(Employee $employee, ?int $year = null): int
+    {
+        $year ??= (int) now()->year;
+
+        return (int) $employee->vacations()
+            ->where('type', VacationType::Annual)
+            ->where('status', ApprovalStatus::Approved)
+            ->whereYear('start_date', $year)
+            ->sum('days');
+    }
+
+    public function remainingAnnualDays(Employee $employee): int
+    {
+        return $this->entitlement() - $this->takenAnnualDays($employee);
+    }
+}